(function($) {
    var settings = {
        'scale': 'contain', // cover
        'prefix': 'prev_',
        'types': ['image/gif', 'image/png', 'image/jpeg'],
        'mime': {'jpe': 'image/jpeg', 'jpeg': 'image/jpeg', 'jpg': 'image/jpeg', 'gif': 'image/gif', 'png': 'image/png', 'x-png': 'image/png', 'tif': 'image/tiff', 'tiff': 'image/tiff'}
    };
    var methods = {
        init: function(options) {
            settings = $.extend(settings, options);
            return this.each(function() {
                $(this).bind('change', methods.change);
                $('#' + settings['prefix'] + this.id).html('').addClass(settings['prefix'] + 'container');
            });
        },
        destroy: function( ) {
            return this.each(function() {
                $(this).unbind('change');
            })
        },
        change: function(event) {
            var id = this.id
            $('#' + settings['prefix'] + id).html('');
            if (window.FileReader) {
                for (i = 0; i < this.files.length; i++) {
                    if (!$.inArray(this.files[i].type, settings['types']) == -1) {
                        window.alert("File of not allowed type");
                        return false
                    }
                }
                for (i = 0; i < this.files.length; i++) {
                    var reader = new FileReader();
                    reader.onload = function(e) {
                        $('<div />').css({'background-image': ('url(' + e.target.result + ')'), 'background-repeat': 'no-repeat', 'background-size': settings['scale']}).addClass(settings['prefix'] + 'thumb').appendTo($('#' + settings['prefix'] + id));
                    };
                    reader.readAsDataURL(this.files[i]);
                }
            } else {
//if(window.confirm('Internet Explorer do not support required HTML5 features. \nPleas, download better browser - Firefox, Google Chrome, Opera... \nDo you want to download and install Google Chrome now?')){ window.location("//google.com/chrome"); }
            }
        }
    };
    $.fn.preimage = function(method) {
        if (methods[method]) {
            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
        } else if (typeof method === 'object' || !method) {
            return methods.init.apply(this, arguments);
        } else {
            $.error('Method ' + method + ' does not exist on jQuery.preimage');
        }
    };
})(jQuery);

//////////////////////////////////////
// Agregado para el boton de cancel //
//////////////////////////////////////

$.fn.cancelUpload = function(contenedor, input) {
    this.click(function() {
        $( contenedor ).empty();
        $( input ).replaceWith( $( input ).val('').clone( true ) );
    });
};